Knockdown tooth-brush.



R. R. OLDHAM.

KNOCKDOWN TOOTH BRUSH. APPLICATION mm JUNE 30. i916.

1 113 1 6, 1 59 Patented Feb: 13, 1917.

avwen'foz R.R.QLUk-MM N.SJW-

(SHOW 101g RALEIGH RAYMOND GLIJHAM, OF LAUIrTtEL, Wilts KNOCKDOVPN TOOTH-BRUSH.

Specification of Letters Eatent.

Application filed June 30, 1916. Serial No. 106,895.

To all whom it may concern:

Be it known that I, RALEIGH RAYMQND OLDHAM, a citizen of the United States, residing at Laurel, in the county of Klickitat, State of Washington, have inventeda new and useful Knockdown Tooth-Brush; and 1 do hereby declare the following to be a full,

clear, and exact description of the invention,

provide a device of this character which is comparatively simple and inexpensive in its construction, which can be easily taken apart or put together, which presents a rigid construction when put together and ready for use, and which can be easily kept in a clean, and sanitary condition.

\Vith these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side ele ation of the head end of the tooth brush.

Fig. 2 is a similar View of the handle end thereof.

Fig. 3 is a top plan view of the head end of the tooth brush.

Fig. 4 is a similar view of the handle end thereof.

Fig. 5 is a longitudinal sectional view through the tooth brush, the parts thereof being assembled in operative position.

Fig. 6 is an enlarged transverse sectional view on the line 6-6'of Fig. 5.

Fig. 7 is a longitudinal sectional view through the carrying case within which the brush is packed when knocked down.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

Specifically describing the knock down tooth brush, the numeral 1 designates the brush head upon which the bristles 2 may be mounted in any conventional manner. A hollow stem 3 projects rearwardly from the brush head 1, said stem being formed of resi lient sheet metal, being provided upon one side thereof with a longitudinal slit 4. The free end of the hollow stem 3 is preferably slightly tapered, as indicated at l. so that the stem. can be readily telescoped within a tubular socket 5 at one end of the handle 6. The socket and handle may be conveniently formed by rolling :1 piece of sheet material, the socket having a longitudinal slit 7 extending from end to end thereof, and the handle 6 being reduced at therear end of the socket 5 on t side thereof provided with the slit 7, thereby providing a stop shoulder which limits the inward movement of the hollow stem. 3 within the socke in forming this shoulder, the edges of the rolled piece of sheet metal from which the handle member is formed may have lateral cuts 8 therein, the

edges of the sheet metal overlapping each other at the handle of the device, and being spaced to provide the slit 7 at one side of the socket 5. A longitudinal flange 9 projects inwardly fromone of the edges of the slit 7. the rear end of the flange being severed from the edge of the slit to provide a. spring tongue 10 which projects slight distance over the handle 6 so that it can ..be readily engaged by the fingers of the hand and flexed laterally in either direction.

The hollow stem 3 of the brush head 1 is designed to telescope within the socket of the handle 6, the flange 9 being received within the slit 4 of the stem 8 to lock the brush head and handle against relative rotation and cause the parts to always be as sembled in the same relation to each other and. the inherent resiliency of the stem an socket causing them to friction'ally engage each other, so that a tight fit is assured.

One of the edges of the slit t of the hollow stem 3 may be provided at a point toward the outer end thereof with a projection l1 adapted to enter an opening 12 in the spring tongue 10 when the stem. is forced home in the socket, thereby preventing the members from being accidentally pulled apart. in

"earwardly a l order toseparate the members, however. it

s merely'necessary to press against the prowithout annoyance or difliculty.

If desired, the knocked down tooth brush may be packed in the end chamber A; of a tubular carrying case 13, said case being provided at the ends thereofwith removable caps 14, and being subdivided by the intermediate partition 15 into the end chambers A and B, respectively; The end chamber A may receive the knocked down tooth brush,

copies of this patent'may be obtained for five cents each, by addressing the while the end form of tooth, 'tubularcase 13 occupies but a small amount chamber B is adapted to recontainer 16 cleaning preparation. This Ceive' a box or of space and constitutes a very convenient means for carrying the tooth brush and dens tifrice. v

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

1. A knock down tooth brush including a head, a hollow stem projecting from\ the head and having a slit in one side thereof, a' handle, a socket at one end of the handle, and a longitudinal flange projecting within the socket, the stem of the brush head being adapted to telescope Within the socket of the handle and the longitudinal flange of the socket being received within the slit of the, stem to hold the parts against relative rotation.

2. A knock down tooth brush including a head, a hollow stem projecting from the a head, a hollow stem projecting filled with some head and having head being adapted to telescope within the socket of the handle and the longitudinal flange of the socket being received within the slit of the stem, and means upon the stem for interlocking with the resilient tongue to lock the members together.

3. A knock down tooth brush including from the head and having a slit in one side thereof, a handle, a socket at one end of the handle, said socket having a slit in one side thereof and the handle being fiattened'at the base of the socket, a longitudinal flange project ing within the socket from one of the edges of the slit in the side thereof, a spring tongue arranged at the rear end of the flange and projecting through the base of the socket andover the handle so that it can be readily flexed by the fingers, the stem of the brush head being adapted to telescope within the socket of the handle and the iongitudinal flange of the socket being received within the slit of the stem, and a projection upon one of the edges of the slit in the stem for obtaining an interlocking with the resilient tongue to lock the two members togethe In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. RALEIGHRAYMOND OLDHAM.

Witnesses:

E. GEARHART, OHAs-S. HEBRARD.

Commissioner of Patents,

Washington, D. C.

engagement 

